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216

ARTICLE
Factor of, 55
Fermat's theorem, 301, 302
Finger rule for multiplication, 463
Finite, 5
Fixed calendar, 149-151
Fractions represented in various
scales, 132, 135
Function, 9

Generalized binary rule for multi-
plication, 472
Generalized division, 91
quotient, 91
Geometric progression, 21, 24
Greatest common factor, 166

Harmonic progression, 25
Hindu notation, 108

Implies, 1

Impossible equation, 399
Indeterminate equation, 398
Induction, mathematical, 2, 238
Infinit, 5

Integral solution, 399

Lazy man’s rule for multiplication,
460

Least common multiple, 172

Length, units of, 144

Lower approximate quotient, 75

m-figure periods, 312

Mathematical induction, 2, 238

Measurement, systems of, 142

Mechanical devices for multiplica-
tion, 467

Modulus, 176

Money, units of, 152

Monkeys problem, 488

INDEX

ARTICLE
Multiple of, 54
Multiplication of the terms of a
series, 39
Multiplication tables, 119
Multiplying on the fingers, 463

Nonary scale, 109
Not, 1

Notation, 106
Numerical value, 43

Octary scale, 109
Octimal scale, 109
Octonary scale, 109
Odd multiple, 305
Or, 1

Periodicity, 291

Perpetual calendar, 149-151
Possible equation, 399
Powers of two, 122

Prime, 155

Prime to, 157

Progression, 4

Quantic, 104

Quantic function, 104

Quantic operation, 104, 222

Quaternary scale, 109

Queer property of numbers, 475

Quinary scale, 109

Quotient, approximate, 75
exact, 54, 75
generalized, 91

Radix, 106

Radix notation, 106
theorem, 102

Remainder, 77, 91

Residue, 91